Interestingly, Russia, which is far more socially conservative than the USA, is number 2.
By Stephanie Kramer, Pew Research Center
For decades, the share of U.S. children living with a single parent has been rising, accompanied by a decline in marriage rates and a rise in births outside of marriage. A new Pew Research Center study of 130 countries and territories shows that the U.S. has the world’s highest rate of children living in single-parent households.
Almost a quarter of U.S. children under the age of 18 live with one parent and no other adults (23%), more than three times the share of children around the world who do so (7%). The study, which analyzed how people’s living arrangements differ by religion, also found that U.S. children from Christian and religiously unaffiliated families are about equally likely to live in this type of arrangement.
In comparison, 3% of children in China, 4% of children in Nigeria and 5% of children in India live in single-parent households. In neighboring Canada, the share is 15%.